Supplementary Figure 9: Hippocampal phase-amplitude coupling (PAC) during NREM sleep.

Clusters showing a significant Modulation Index (MI) when comparing NREM PAC with WAKE PAC (left) and with trial-shuffled NREM surrogate data (right). Maps are thresholded to show t value clusters whose P < 0.05 and whose size exceeds 25 contiguous frequency pairs.